Surface equipment for pumping wells



Aug. 4, 1925.

c. B. M ELWAI NE SURFACE EQUIPMENT FOR PUMPING WELLS Filed July 30, 1925 INVENTOR.

Clayton B. MSEIWaine ATTORNEYS.

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Patented Aug. 4, 1925.

uiTE n STAT SURFACE EQUIPMENT FOR Application filed July 30,1923.

To all whom, it may concern:

Be it known that I, CLAYTON B. McEnwamn, a citizen of the United States, residing at Wichita, county of Sedgwick, and State of Kansas, have invented new and useful Improvements in Surface Equipments for Pumping Wells, reference being had to the accompanying drawings, which form a part of this specification.

The object of my invention is to provide a mechanical device that will operate a pump shaft vertically, keeping the rod in perfect and plumb alignment at any angle of the beam stroke, while in the act of pumping. Further objects will be more fully explained hereinafter.

Referring to the drawings, Fig. 1 is a. side elevation of a pump rod. Fig. 2 is a top view of the mechanism. Fig. 3 is an end view of the rocker arm bearing,- the arm being removed. Fig. 4 is a side view, one arm being removed and fragmentary part of one arm shown in section.

1 is a standard, having footing bars 2, said bars being riveted to standard and adapted to rest on a foundation and fastened firmly thereto by means of leg screws 3. 4: is an arm firmly attached to said standard. 5 is a bearing seat adapted to set on the top end of said standard and fastened firmly by means of a rivet or bolt 6 passing through ears 7, which are positioned on both sides of the webbing 8, of said standard. 9 and 10 are rocker arms pivotedly mounted to said members a and 5, and pivotedly attached to beam 11, rocker arms function as means for causing the bearing 1a of said beam 11 to travel in a vertical line, by which means the polish rod 15 will not be made to spring as by an ordinary walking beam movement.

The said beam 11 is composed of two channels and is centrally hung by the rocker arms 10, and said arms being connected at the top by means of a knife blade bearing 16, the end of said bearing adapted to engage through holes in ends of said rocker arm 10 and the blade 17 has its bearing in the seat block 5 as shown in Fig. 5, and on the top of said knife blade bearing is a flange A, having notches B, and U bars C being rigidly bolted to seat 5 as shown, functions as a safeguard to hold the proper alignment of the knife blade in its bearing and also to insure said blade remaining in its proper position from jumping out of its bearing,

PUMPING WELLS.

Serial No. 654,630.

causing the bearing 13, which is also a knife blade bearing to move in a plumb line in its oscillating movement under the action of the pump jack 19, hereinafter described.

The arm 9 being interposed between the channels of beam 11 is pivotedly connected at 12, and t re varying position of beam and rocker arms are shown by dotted lines.

On the end of said beam 11 is attached a weight 20, said weight being suspended by a rod 21, said rod having a 'l" bearing 22 resting in a bearing 23 and on opposite end of said beam is a bearing plate 24 firm ly attached thereto, said plate being socketed to receive a point 25, and said point being firmly attached to the end of a shaft 26 and the opposite end of said shaft having a cone shaped member 27 resting in a socket 28 and said socket being integral with a connection that joins bars 29 and 30 and the opposite end of said bars enter connecting members 31 and 32 and the said connecting members engage the end of an upright bar 33, the said members 28, 29, 30, 31, 32 and 33 constitute a pump jack, and the said mechanism is pivotedly mounted at 34 on a block 35. The top member 31 having a notched extension 36 adapted to engage the loop of a cable and the said cable extends to a crank shaft functioning as power to oscillate the pump jack.

The weight 20 is an element functioning as a counter balance to counteract a portion of the weight of the polish rod. 37 is the packing box of the casing head. 38 is a lead pipe adapted to extend to a tank or other means containing the oil as it is pumped. 39 is a brace rod being set angling longi tudinal with the beam. 10 is brace rods transversely positioned to the beam, said rods functioning as brace rods to hold said standard in a vertical and rigid position.

Such modifications may be made as lie within the scope of the appended claims, and having thus described my invention, what I claim as new and desire to secure by Letters Patent is;

1. In a surface equipment of the kind described, a vertical standard having brace members supporting said standard in a plumb position, a bearing plate on the top of said standard functioning as a knife blade bearing, rocker arms, a knife blade bearing engaging with said rocker arms, an oscillating beam, said beam being suspended by said arms, said beam being composed of two members, and said standard being interposed between the members of said beam, an extending member, said memher being horizontally disposed, a rocker arm pivotally mounted to said extending member on said standard, and the said rocker-arm being interposed between the members of said beam, and pivotally connected thereto, a knife blade bearing on the end of said beam, a polish rod knife blade bearing, said bearing adapted to seat in said beam bearing, a pump jack, said pump jack engaging with a vertical shalt as hoisting means for the end of said beam, a counter balance weight attached to the opposite end of said beam, all for the purpose set forth and described.

2. In a surface equipment of the kind described, a vertical standard, foot members rigidly attached to said standard as means for holding said standard rigid to its foundation, a bearing block on the opposite end of said standard, a V shaped bearing in saidblock, a knife blade bearing engag- 111g in said block, said bearing having a Web member notched. to engage under U bars, U bars rigidly attached to said bearing block, as means for holding said knife blade bearing in operative position, rocker arms rigidly attached to the ends of said 30 knife blade bearing, said rocker arms being pivotally attached to an oscillating beam as suspension means, a second rocker arm pivoted to said standard extension and the opposite end of said arm being pivotally attached to said beam as vertical controlling means for the polish rod, a counter balance, said counter balance being pivotally connected to said beam, a pump jack and means for engaging the end of said jack With the end of said beam as hoisting and pumping means and the said polish rod bearing being interposed between said hoisting means and said rocker arms and in close proximity to said hoisting means so as to reduce the Weight leverage at the rocker arms, all for the purpose set forth and described.

CLAYTON B. MQELXVAINE. 

